Upright boiler.



N0- 762,106. PATBNTED JUNE 7, 1904. N. L. WARREN. UPRIGHT- BOILER- umonzon mm nov.1e, 1903. 110 MODEL. 2 BHEETB-SHEET 2- WIN/8856. INVENTOB z Jwfanl.%rrew ATTORNEY m: NORRIS PETERS co. mom-mum. WASHINGTON u c.

UNITED STATES Patented June 7, 1904.

PATENT ()FFICE.

UPRIGHT BOILER.

SPECIFICATION forming part of Letters Patent No. 762,106, dated June '7, 1904.

Application filed November 19, 1903. Serial No. 181,794. (No model.)

To all whom it may concern:

Be it known that I, NEWTON L. WARREN, a citizen of the United States, and a resident of Macon, in the county of Bibb and State of Georgia, have invented a new and Improved Upright Boiler, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved upright boiler arranged to permit convenient entrance of the operator for cleaning the interior of the boiler and to give ready access to the smoke-tubes to clean the same. 1

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional side elevation of the improvement. Fig. 2 is a front view of the same, parts being in section; and Fig. 3 is an inverted sectional plan view of the same on the line 3 3 of Fig. 1.

In the brickwork A of the boiler-furnace is arranged a fire-box B, provided with a grate C, below which is arranged an ash-pit D, and the said fire-box and ash-pit are provided with the usual doors E and E.

The fire-box B is connected by a bridgewall Fwith a combustion-chamber G, over which is set a boiler-shell H, disposed vertically and supported by suitable brackets I on the brickwork A, as plainly indicated in the drawings. The boiler-shell H is closed at top and bottom by heads J and J, connected with each other by smoke flues or tubes K, of which the innermost rows K are in the form of staytubes, as plainly indicated in Figs. 1 and 2. The middle portions J 2 and J 3 of the heads J and J are arched and extend diametrically adjacent to the innermost rows K of the tubes K, so as to leave considerable space in the middle portion of the boiler for the entrance of the operator to clean the boiler interiorly whenever it is deemed necessary to do so. Access to the space in the middle porf tion of the boiler is had through a suitable manhole H, .leading to the space near the lower end of the shell, it being, however, expressly understood that the said space extends from the arched middle portion J 3 of the bottom head J to the corresponding arched middle portion J 2 of the top head J and through the entire diameter of the boiler, as plainly indicated in Fig. 3.

It is further understood that by arching the middle portions J and J 3 of the boilerheads and making the adjacent rows K of the boiler-tubes K in the form of stay-tubes the desired and necessary strength is given to the boiler-heads at these points.

From the middle portion J 2 of the top boiler-head J leads a steam-pipe L for carrying off the steam, and the said middle portion J 2 is also provided with pipes N for carrying safety-valves. From the middle portion J 3 of the lower boiler-head J leads a blow-off pipe 0, as indicated in Fig. 1.

It is understood that the lower ends of the boiler-tubes K open directly into' the combustion-chamber G, and the upper ends of the said tubes open into a smoke-box P, provided on top with hinged doors P, which when open give convenient access to the upper ends of the tubes K to allow of conveniently cleaning the same. The smoke-box P has a side outlet P for connection with the chimney, and the smoke-box is surrounded by a suitable platform Q, for the operator to stand on when cleaning the tubes K, as above mentioned.

A feed-pipe R for supplying the boiler with water is illustrated in Figs. 1 and 2, and the boiler-is provided with the usual water-gage S and the steam-gage T.

Having thus described my invention, I claim as new and desire to seou re by Letters Patent 1. A boiler provided with a shell, boilerheads for the same, provided with arched portions extending diametrically, and boilertubes connecting the heads with each other at the non-arched portions, to leave a clear space in the middle of the boiler, as set forth.

2. A boiler provided with a shell, boilerheads for the same, provided with arched portions extending diametrically, boiler-tubes connecting the heads with each other at the non-arched portions, to leave a clear space in the middle of the boiler, and a manhole in the said shell, opening into the said clear space, as set forth.

3. A boiler provided with a shell, boilerheads for the same, provided with arched portions extending diametrically, boiler -tubes connecting the heads with each other at the non-arched portions, to leave a clear space in the middle of the boiler, and a steam-outlet at the arched portion of the upper head, as set forth.

4:. A boiler provided with a shell, boilerheads for the same, provided with arched portions extending diametrically, boiler-tubes connecting the heads with each other at the non-arched portions, to leave a clear space in the middle of the boiler, and a blow-off pipe leading from the arched portion of the lower head, as set forth.

5. A boiler provided with a shell, boilerheads for the same, provided with arched portions extending diametrically, boiler tubes connecting the heads with each other at the non-arched portions, to leave a clear space in the middle of the boiler, a steam-outlet and safety-valves on the arched portion of theupper head, and a blow-off pipe leading from the arched portion of the lower head, as set forth.

6. A boiler provided with a shell, boilerheads for the same, provided with arched portions extending diametrically, and boilertubes connecting the heads with each other at the non-arched. portions, to leave a clear space in the middle of the boiler, the innermost rows of tubes, adjacent to the arched portions of the boiler-heads, being stay-tubes, as set forth.

7. A boiler comprisinga fire-box, acombustion-chamber, a bridge-wall between the firebox and the combustion-chamber, an upright boiler-shell set over the combustion-chamber, boiler-heads in the said shell, having arched middle portions, boiler-tubes connecting the said heads with each other at the non-arched portions, and a smoke-box on the upper boilerhcad, having hinged doors for giving access to the upper ends of the said boiler-tubes, as set forth.

8. A boiler comprising ashell, boiler-heads for the same provided with parallel arched portions extending diametrically across the boiler from side to side thereof, boiler-tubes connecting the heads with each other at the non-arched portions to leave a clear space in the middle of the boiler, the innermost rows of tubes adjacent the arched portions of the boiler-heads being stay-tubes, a steam-outlet and safety-valves on the arched portion of the upper head, a blow-off pipe leading from the arched portion of the lower head, a manhole in the side of the shell near the lower end thereof opening into the space between the parallel arched portions of the boiler-heads, and feed-pipes in said space at the side of the boiler diametrically opposite the manhole.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

NEWTON L. WARREN.

VVitn esses FRANCIS HERRING, MA LoRY BEDINGFIELD. 

